TANDEM DIABETES CARE INC

Ticker: TNDM CUSIP: 875372203 Class: EQTY

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 135,753 Value ($000) $2,984 Avg Close $18.05 Range $12.07 - $24.50

Q2 2025

Shares 12,411 Value ($000) $231 Avg Close $19.81 Range $15.75 - $24.00

Q2 2022

Shares 111,899 Value ($000) $6,623 Avg Close $82.09 Range $52.69 - $123.96

Q1 2022

Shares 9,491 Value ($000) $1,104 Avg Close $116.75 Range $100.00 - $150.64

Q1 2021

Shares 98,162 Value ($000) $8,663 Avg Close $92.94 Range $77.77 - $105.00

Q4 2020

Shares 115,084 Value ($000) $11,011 Avg Close $103.06 Range $84.56 - $123.74

Q4 2019

Shares 92,500 Value ($000) $5,514 Avg Close $61.67 Range $52.31 - $71.99

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	135,753	$2,984	$18.05	$12.07 - $24.50
Q2 2025	12,411	$231	$19.81	$15.75 - $24.00
Q2 2022	111,899	$6,623	$82.09	$52.69 - $123.96
Q1 2022	9,491	$1,104	$116.75	$100.00 - $150.64
Q1 2021	98,162	$8,663	$92.94	$77.77 - $105.00
Q4 2020	115,084	$11,011	$103.06	$84.56 - $123.74
Q4 2019	92,500	$5,514	$61.67	$52.31 - $71.99